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Biology Unit 2 > DNA > Flashcards

Flashcards in DNA Deck (11)
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1
Q

What are chromosomes?

A

Really long strings of DNA.

2
Q

What’s the structure of a DNA molecule?

A

Double-helix structure.

3
Q

Where are chromosomes found?

A

In the nucleus of a cell.

4
Q

What is a gene?

A

A gene is a section of DNA that codes for a specific characteristic.

5
Q

What does a gene contain instructions to do?

A

Make a specific protein.

6
Q

How do cells make proteins?

A

By joining strings of amino acids together in a particular order.

7
Q

How many amino acids are used in our DNA?

A

20.

8
Q

Genes tell cells in what order to put the _____ ____ together.

A

Amino Acids

9
Q

DNA also determines what ____ __ ____ the proteins produce (e.g red blood cell, skin cell).

A

Type of Cell

10
Q

Identical twins have identical DNA, true or false?

A

True, because their embryo split into 2 parts and began growing as 2 separate foetuses, meaning they have the same genetic information.

11
Q

What is DNA fingerprinting?

A

Cutting up a persons DNA into small sections and then separating them. Every person’s genetic fingerprint has a unique pattern, meaning you can tell people apart using their fingerprints.